Rubber heel



.Hume 24, w24. 1,499,238

J. MALCHER RUBBER HEEL AFiled Oc'l.. 31, 1923 j )MMM Patented -.l une 24, 1924.

JOHN MALCHER, F CHICAGO, ILLINOIS.

RUBBER .HEEL

l Application led October 31, 1923. Serial No. 671,912.

To all whom z't may concern.'

Be it known that I, JOHN MALCHER, a citizen of the United States, resident of Chicago, in the county of Cook and State of Illinois, have made a certain new and useful Invention in Rubber Heels; and I declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it appertains tomake and use the invention, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Figure 1 is a perspective view of the invention Vas applied.

Figure 2 is a top plan view of the heel.

Figure 3 is a bottom plan view 'of the same.

29 Figure 4 is a section on the line 4.-4,

Figure 3.

Figure 5 is a similar view with heel under compression as in walking. i

Figure 6 is a detail section on the line 6-6, Figure 5.

The invention has relation to rubber heels for boots and shoes, having for an object the provision of an improved heel of this descri tion.

'ly e invention consists in the novel conv struction and combinations of parts as set forth in the appended claim.

In the accompanying drawings illustrating an embodiment of the invention, the -numeral 1 designates the body of the heel,

having opening into its upper surface a plurality of cavities 2, preferably s1x in number and arranged close together in the central portion of the heel with solid vertical partition walls 3 separating the same and abutting at their tops 4 against the leather vbase 5 of the heel, said tops being 1n the sarie plane as the top surface of the heel bo Tile cavities are arranged close together in a field occupying the central portion of the heel and have their lower ends in a plane above the plane of the bottom of the heel.

Underlying' the cavities 2 centrally thereof 50 are a pluralit of protuberances 6, one protuberance un erlying each cavityz the cav-1- ties being each substantially seml-spherical in form with some excess, and the protuberances being each somewhat less than semispherical or ball form, the radii of the protuberances being respectively less than the radii of the cavities, whereby the vformer project to a less extent from the tread surface of the heel and are more scattered there, on, having spaces therebetween greater than in the case of said cavities.

The protuberances are of small diameter compared to that of said cavities and pro- .lilectl below the plane of the bottom of the The six cavities and protuberances are arran ed in triangular fashion with one side of t e triangle formed byvthree protuberances and cavities facing andapproximately parallel to the breast of the heel, the other two sides vof the triangle being made up each of three cavities and three protuberances, converging rearwardly of the heel.

In the use of this heel, the scattered partial ball form protuberances in their contact with.the ground in walking will partially merge into the heel body as shown in Figure 5 of the drawings, the shock off'contact being cushioned by the compression of the air contained in said cavities, and the partitions 3 at all times in contact at' their tops with the leather base of the heel and being thickened under the compression following i from the load borne aiding materially in the cushioning effect, said partitions being of compound radiating form and serving' toA prevent distortion of the yheel when used continuously owing to their mutual bracing effect. f

-I claim f 9o A rubber heel having opening into its v upper surface a plurality of cavities of approximately semi-spherical form and arranged close together in a. field occupying,I the central part of the heel and havin-g their lower ends located in a plane above the bottom plane of the heel, and a plurality of partial ball form-protuberances of 'small diameter compared to that of and underlying said cavities and projecting below the -100 bottom plane of the heel.

In testimony whereof I affix my signature.

JOHN MALCHER. 

